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June Weather in San Antonio, Mexico

Last updated: August 27, 2025

In June, the average temperature in San Antonio, Mexico is a warm 29°C (84°F). You can expect a pleasant range, with minimums dipping to 19°C (66°F) and highs reaching up to 38°C (100°F). The area sees minimal rainfall, averaging only 18 mm (0.7 in) over just 0 days. With an average humidity of 50%, it's an ideal time to enjoy the outdoors!

June Temperature in San Antonio

In June in San Antonio, the average temperature is 29°C (84°F). Maximums can reach 38°C (100°F), while minimums can be as low as 19°C (66°F). This warm weather makes San Antonio an ideal destination for travelers seeking sun and outdoor activities.

June Weather in San Antonio: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in San Antonio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Antonio, June typically has an average temperature of 29°C (84°F), with highs reaching up to 38°C (100°F) and lows dropping to around 19°C (66°F).
JanFebMarAprMayJunJulAugSepOctNovDec646568737884878886837466
Data source: Temperature data for San Antonio generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

June Precipitation in San Antonio

In San Antonio in June, the precipitation amount is 18 mm (0.7 in) over a span of 0 days.

June Precipitation Trends in San Antonio

The chart displays monthly precipitation patterns in San Antonio, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In San Antonio, June typically receives around 18 mm (0.7 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec13950018367377202816
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in San Antonio

In San Antonio in June, humidity is 50%. With an average temperature of 29°C (84°F), this humidity feels like a warm embrace, making it a comfortable environment for exploring scenic spots and enjoying outdoor activities, though occasional breaks in the shade can be refreshing.

June Average Humidity in San Antonio

This chart illustrates the average monthly humidity levels in San Antonio, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in San Antonio is approximately 50%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%67%60%51%47%50%70%82%82%78%78%81%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in San Antonio

In San Antonio in June, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in San Antonio.

Maximum UV Index Levels in San Antonio for June

The chart shows the monthly maximum UV Index (UVI) for San Antonio in June, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In June, the maximum UV index in San Antonio typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec68101212121212121075
Data source: San Antonio June UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How June Weather in San Antonio Compares to Other Months

Weather in San Antonio varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in San Antonio, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in San Antonio, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (64°F)13 mm (0.5 inches)74%high
February Weather18°C (65°F)9 mm (0.4 inches)67%very high
March Weather20°C (68°F)5 mm (0.2 inches)60%very high
April Weather23°C (73°F)0 mm (0.0 inches)51%extreme
May Weather25°C (78°F)0 mm (0.0 inches)47%extreme
June Weather29°C (84°F)18 mm (0.7 inches)50%extreme
July Weather31°C (88°F)36 mm (1.4 inches)70%extreme
August Weather31°C (88°F)73 mm (2.9 inches)81%extreme
September Weather30°C (86°F)77 mm (3.0 inches)82%extreme
October Weather28°C (83°F)20 mm (0.8 inches)78%very high
November Weather24°C (75°F)28 mm (1.1 inches)78%high
December Weather19°C (66°F)16 mm (0.6 inches)80%moderate

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